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Returns stack_umami_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. One public HTTPS root domain, up to150 baseline technologies; 9s timeout.","extensions":{"bazaar":{"info":{"input":{"body":{"url":"https://example.com/"},"bodyType":"json","method":"POST","type":"http"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"previous":{"additionalProperties":false,"properties":{"observed_at":{"maxLength":40,"type":"string"},"technologies":{"items":{"additionalProperties":false,"properties":{"category":{"maxLength":80,"type":"string"},"name":{"maxLength":150,"type":"string"},"version":{"maxLength":80,"type":["string","null"]}},"required":["name","category","version"],"type":"object"},"maxItems":150,"type":"array"}},"required":["observed_at","technologies"],"type":"object"},"url":{"maxLength":2048,"type":"string"}},"required":["url"],"title":"Umami fingerprint monitor input","type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"}},"required":["input"],"type":"object"}}},"lastUpdated":"2026-10-14T10:18:36.078Z","quality":{"l30DaysTotalCalls":3,"l30DaysUniquePayers":2,"lastCalledAt":"2026-10-14T10:18:35.874Z"},"resource":"https://stack.halowerk.com/stack/articles/umami","serviceName":"Tech Detect","tags":["x402","halowerk","stack_umami"],"type":"http","x402Version":2},"source":"x402_bazaar","summary":"Purpose-bound Umami observation (analytics) using the existing fresh Stack-Monitor. Returns stack_umami_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. 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